How One Can Develop Pneumonia Symptoms When Infected by Virus ( like coronavirus)
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Lung bronchiols have tiny cells called alveoli. The airways of alveoli are flexible. Small blood vessels called cappilaries surrounds alveoli. Oxygen from air you breathe passes into capillaries and carbon dioxide from body passes out of capillaries into alveoli so that your lungs get rid of it when you exhale. Through airways, most of the germs get catched in mucus that lines the trachea. Hairs like cilia constantly push the mucus and germs out of your airways where it get expell from your body...
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